Abstract

A detailed study on analyzing the crosstalk in a wavelength division multiplexed fiber laser sensor array system based on a digital phase generated carrier interferometric interrogation scheme is reported. The crosstalk effects induced by the limited optical channel isolation of a dense wavelength division demultiplexer (DWDM) are presented, and the necessary channel isolation to keep the crosstalk negligible to the output signal was calculated via Bessel function expansion and demonstrated by a two serial fiber laser sensors system. Finally, a three-element fiber laser sensor array system with a 50-dB channel-isolation DWDM was built up. Experimental results demonstrated that there was no measurable crosstalk between the output channels.

© 2008 IEEE

High-quality hybrid TDM/DWDM-based fiber optic sensor array with extremely low crosstalk based on wavelength-cross-combination method

Zhongjie Ren, Ke Cui, Jianxin Li, Rihong Zhu, Qing He, Hailing Wang, Shaokun Deng, and Wenjun Peng
Opt. Express 25(23) 28870-28885 (2017)

Hybrid wavelength- and frequency-division multiplexed fiber laser sensor array

Shengchun Liu, Xue Dong, Xiujuan Yu, Xuefeng Chen, and Chao Tian
Opt. Lett. 42(1) 159-162 (2017)

Crosstalk suppression of extrinsic Fabry-Perot interferometric sensor array based on five-step phase shift demodulation scheme using multiwavelength averaging

Zheng Liu, Fuyin Wang, Ji Xia, Gang Liu, Shuidong Xiong, and Qiong Yao
Opt. Express 32(3) 3574-3584 (2024)

Analysis and mitigation of the carrier phase delay effect of the digital phase generated carrier algorithm

Shuwang Li, Shiyong Shao, Haiping Mei, Qilong Hao, and Ruizhong Rao
Appl. Opt. 56(3) 731-738 (2017)

Time-division multiplexing of interferometric fiber sensors using passive phase-generated carrier interrogation

A. D. Kersey, A. Dandridge, and A. B. Tveten
Opt. Lett. 12(10) 775-777 (1987)